WO2009002167A1 - Appareil pour l'échange de chaleur avec mélangeage radial - Google Patents

Appareil pour l'échange de chaleur avec mélangeage radial Download PDF

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Publication number
WO2009002167A1
WO2009002167A1 PCT/NL2008/050415 NL2008050415W WO2009002167A1 WO 2009002167 A1 WO2009002167 A1 WO 2009002167A1 NL 2008050415 W NL2008050415 W NL 2008050415W WO 2009002167 A1 WO2009002167 A1 WO 2009002167A1
Authority
WO
WIPO (PCT)
Prior art keywords
paddles
shafts
trough
product
axial direction
Prior art date
Application number
PCT/NL2008/050415
Other languages
English (en)
Inventor
Unnis Maria Van Elderen
Theodorus Gijsbertus Ravensberg
Ronnie Johannes Maria Van Heijningen
Original Assignee
Goudsche Machinefabriek B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goudsche Machinefabriek B.V. filed Critical Goudsche Machinefabriek B.V.
Priority to JP2010513141A priority Critical patent/JP5425059B2/ja
Priority to RU2010101929/06A priority patent/RU2473028C2/ru
Priority to CN200880100670A priority patent/CN101765754A/zh
Priority to KR1020107001451A priority patent/KR101450837B1/ko
Publication of WO2009002167A1 publication Critical patent/WO2009002167A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F5/00—Elements specially adapted for movement
    • F28F5/04—Hollow impellers, e.g. stirring vane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/61—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/95—Heating or cooling systems using heated or cooled stirrers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined

Definitions

  • This invention relates to an apparatus comprising a trough with two rotatably arranged shafts extending alongside each other, which shafts are each provided with paddles spaced apart in axial direction with an intermediate distance, which extend substantially in a radial plane with respect to the shafts and which extend in circumferential direction over at least a part of the circumference and which are at least partly wedge-shaped in circumferential direction, while upon opposite rotation of the shafts successive paddles in axial direction mesh alternately, thereby forming a gap narrowing again and again, which is pitchless in axial direction.
  • Such an apparatus is generally known.
  • One construction is for instance described in JP 58 117 954 in the name of Nara Machinery Company Ltd.
  • the paddles and/or the trough are arranged for being in heat exchanging contact with the product.
  • the product may be cooled, dried and/or heated, with use being made of radial mixing of the product.
  • an apparatus per mixing shaft, all mixing paddles are placed in line in order to prevent axial forces by the paddles on the product as much as possible.
  • a drawback of such a set-up is that peak load on the shafts and drive can occur. This is the case especially with products having a high density and/or viscosity, as for instance dehydrated sewage sludge.
  • the object of the invention is to provide an apparatus of the type mentioned in the opening paragraph by which the disadvantages mentioned can be prevented while maintaining the advantages.
  • an apparatus according to the invention is characterized in that per shaft successive paddles in axial direction are staggered relative to each other in circumferential direction through an angle.
  • the paddles per shaft are not led into the product all at the same time and the peak load is distributed during the rotation of the shaft, while the axial forces on the product remain limited.
  • the peak load is virtually spread out over a rotation of the shaft. This results in a more or less uniformly distributed loading of the shaft and drive.
  • Fig. 1 shows a schematic side elevation of an apparatus according to the invention
  • Fig. 2 shows a schematic top plan and perspective view of shafts with helically arranged paddles in a first configuration
  • Fig. 3 shows a schematic top plan and perspective view of shafts with helically arranged paddles in a second configuration
  • Fig. 4 shows a schematic front view of shafts with paddles in the first configuration
  • Fig. 5 shows a schematic front view of shafts with paddles in the second configuration
  • Fig. 6 shows a schematic top plan and perspective view of shafts with paddles arranged in the form of a wavy line
  • Fig. 7 shows a schematic top plan and perspective view of shafts with randomly arranged paddles
  • Fig. 8 shows a schematic front view of paddles arranged for heat exchanging contact
  • Fig. 9 shows a schematic top plan and side view of a paddle.
  • Fig. 1 shows an apparatus 1 which comprises a trough 2.
  • the trough 2 is partly cut through, so that a shaft 3 can be seen.
  • the trough 2 comprises two rotatably arranged shafts 3, extending alongside each other.
  • the apparatus 1 is provided with an inlet 4 along which the product to be treated is fed into the trough 2, and an outlet 5 along which the product is discharged from the trough 2.
  • the shafts 3 are arranged in a direction that corresponds to a path between the inlet 4 and the outlet 5 of the trough 2.
  • the shafts 3 are driven by means of a drive 6.
  • the shafts 3 are provided with paddles 7, spaced apart in axial direction with an intermediate distance, which are set up in the form of a helix, as shown in Fig. 1.
  • the paddles 7 extend in circumferential direction substantially in a radial plane over a part of the circumference.
  • the paddles 7 have at least partly a wedge-shaped contour, as can be seen in Fig. 9.
  • the paddles 7 are arranged for heat exchanging contact with the product.
  • the paddles 7 may be of hollow design, as shown in Fig. 8, and may be filled with steam or with a hot or cold liquid.
  • the apparatus 1 can then be used to dry, cool and/or heat the product. Drying, cooling or heating is rendered more efficient by making use of radial mixing of the product.
  • product is supplied via the inlet 4 to the trough 2.
  • successive paddles 7 mesh alternately, thereby forming a narrowing gap.
  • the narrowing gap is pitchless in axial direction and hence does not impose any transport movement in an axial direction on the product to be treated.
  • Transport of the product to be treated in an axial direction along the shafts 3 is provided for by a transport provision external with respect to the shafts 3 and paddles 7.
  • This external transport provision comprises in this exemplary embodiment a plug flow imposed via a supply.
  • the external transport provision in this exemplary embodiment comprises furthermore a placement of the trough at a slope.
  • the bottom of the trough is arranged at an inclination with respect to the shafts 3, so that the product to be treated flows from inlet 4 to outlet 5 under the influence of gravity.
  • the paddles 7 are provided at the ends thereof with a carrier plate 8, as shown in Fig. 9.
  • a carrier plate 8 By the carrier plate 8, the slit left in the product by the paddle 7 is disturbed, so that a more optimal radial mixing can be achieved.
  • the angle between successive paddles 7 on a shaft in this example is at most approximately 15°, being for instance approximately 10°. Given such a small angle, the load can be distributed comparatively uniformly over the shaft 3 and the axial force of the paddles 7 on the product can remain small, so that only mixing in radial direction will take place.
  • Fig. 2, Fig. 3, Fig. 6 and Fig. 7 show different embodiments in which the paddles 7 may be arranged.
  • the successive paddles 7 may be arranged in the form of a helix, as shown in Fig. 1, Fig. 2, and Fig. 3.
  • successive paddles 7 may be arranged in the form of a wave, as shown in Fig. 6.
  • successive paddles 7 may be arranged at random, as shown in Fig. 7.
  • Such arrangements may be implemented in two possible configurations: a configuration whereby per mixing shaft in one and the same radial plane two or more paddles are arranged, the so-called paired configuration as shown in Fig. 3 and Fig. 4, and a configuration whereby per mixing shaft in one and the same radial plane one paddle is arranged, the so-called staggered configuration as shown in Fig. 2 and Fig. 5.
  • next paddles 7 are in the same radial plane as their preceding paddles 7, so that after closure of one gap, the next gap likewise opens in the same radial plane.
  • staggered configuration (Fig. 2 and Fig. 5) in a respective radial plane, there is per shaft 3 only one paddle 7.
  • the narrowing gap 9 is formed between a paddle 7 of the first shaft 3 and a successive paddle 7 of the second shaft 3. The gap 9 opens wide at meshing of the wedge-shaped paddles 7 and closes narrow at the carrier plates 8 of the paddles 7.
  • next paddle 7 is displaced in axial direction relative to the preceding paddle 7, so that during rotation the next gap 9 is staggered in axial direction relative to the gap formed earlier during rotation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Drying Of Solid Materials (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un appareil (1) comprenant un passage (2) ayant deux axes (3) disposés de façon à pouvoir tourner s'étendant parallèlement l'un le long de l'autre, lesquels axes (3) sont chacun pourvus d'ailettes (7) espacées les unes des autres dans la direction axiale à une distance intermédiaire. Les ailettes (7) s'étendent dans un plan pratiquement radial par rapport aux axes (3) et s'étendent dans la direction de la circonférence sur au moins une partie de la circonférence. Dans la direction de la circonférence, les ailettes (7) sont au moins en partie en forme de coin. Lors de la rotation opposée des axes (3), les ailettes (7) successives s'engrènent alternativement, ce qui forme de cette manière un espace se rétrécissant encore et encore. Sur chaque axe (3), les ailettes successives (7) dans la direction axiale sont décalées d'un angle donné les unes par rapport aux autres dans la direction de la circonférence.
PCT/NL2008/050415 2007-06-22 2008-06-23 Appareil pour l'échange de chaleur avec mélangeage radial WO2009002167A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2010513141A JP5425059B2 (ja) 2007-06-22 2008-06-23 半径方向の混合による熱交換用の装置
RU2010101929/06A RU2473028C2 (ru) 2007-06-22 2008-06-23 Устройство для теплообмена с радиальным перемешиванием
CN200880100670A CN101765754A (zh) 2007-06-22 2008-06-23 利用径向混合进行换热的设备
KR1020107001451A KR101450837B1 (ko) 2007-06-22 2008-06-23 반경 방향 혼합과 함께 열교환을 위한 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1034022A NL1034022C2 (nl) 2007-06-22 2007-06-22 Inrichting voor warmtewisseling met radiaal mengen.
NL1034022 2007-06-22

Publications (1)

Publication Number Publication Date
WO2009002167A1 true WO2009002167A1 (fr) 2008-12-31

Family

ID=39027108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2008/050415 WO2009002167A1 (fr) 2007-06-22 2008-06-23 Appareil pour l'échange de chaleur avec mélangeage radial

Country Status (10)

Country Link
US (1) US8118479B2 (fr)
EP (1) EP2015019B1 (fr)
JP (1) JP5425059B2 (fr)
KR (1) KR101450837B1 (fr)
CN (1) CN101765754A (fr)
AT (1) ATE533023T1 (fr)
ES (1) ES2375301T3 (fr)
NL (1) NL1034022C2 (fr)
RU (1) RU2473028C2 (fr)
WO (1) WO2009002167A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5214407B2 (ja) * 2008-11-06 2013-06-19 株式会社奈良機械製作所 粉粒体の熱交換装置及びその製造方法
JP5372186B2 (ja) * 2012-02-14 2013-12-18 三菱重工環境・化学エンジニアリング株式会社 間接加熱式乾燥装置
JP5372187B2 (ja) * 2012-02-15 2013-12-18 三菱重工環境・化学エンジニアリング株式会社 間接加熱式乾燥装置
JP5900962B2 (ja) * 2012-06-29 2016-04-06 株式会社大和三光製作所 撹拌翼付乾燥機
CN102798303A (zh) * 2012-08-17 2012-11-28 无锡市华立石化工程有限公司 一种蛇形带有翅片的高压混合器
JP6099968B2 (ja) * 2012-12-27 2017-03-22 株式会社新日南 混練装置
JP6139949B2 (ja) * 2013-04-05 2017-05-31 三菱重工環境・化学エンジニアリング株式会社 間接加熱式乾燥装置
JP6139958B2 (ja) * 2013-04-24 2017-05-31 三菱重工環境・化学エンジニアリング株式会社 加熱乾燥方法、および、間接加熱式乾燥装置
CN110470118B (zh) * 2016-05-04 2021-08-27 三菱重工环境·化学工程株式会社 干燥装置
AU2016426578B2 (en) 2016-10-11 2020-05-28 Thöni Industriebetriebe Gmbh Stirring device with improved stirring element configuration
JP6258530B2 (ja) * 2017-01-12 2018-01-10 株式会社新日南 混練装置
US10434483B2 (en) * 2017-02-15 2019-10-08 Wenger Manufacturing Inc. High thermal transfer hollow core extrusion screw assembly
CN107056004A (zh) * 2017-03-30 2017-08-18 四川高博环保工程有限公司 污泥水解罐内搅拌结构
CN106731955A (zh) * 2017-03-30 2017-05-31 四川高博环保工程有限公司 新型搅拌叶片
JP7112248B2 (ja) * 2018-05-23 2022-08-03 パンパシフィック・カッパー株式会社 解砕機能を備えた撹拌式乾燥装置の補助翼構造
CN109368980A (zh) * 2018-12-21 2019-02-22 北京京城环保股份有限公司 一种以蒸汽为热源的空心桨叶式污泥干燥装置及方法
FR3109535B1 (fr) * 2020-04-22 2023-04-14 Soprema Mélangeur chauffant pour produit composite

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FR1294663A (fr) * 1961-07-11 1962-05-26 George Fletcher & Co Ltd échangeurs de chaleur, et notamment cristallisoirs
DE1923870A1 (de) * 1968-05-10 1970-02-12 Joy Mfg Co Materialbearbeitungsvorrichtung mit Schraubenfoerderer
US3500901A (en) * 1967-11-08 1970-03-17 Bethlehem Corp The Mixer
US3613777A (en) * 1969-02-18 1971-10-19 Jiyuichi Nara Heat exchange apparatus for powdered materials
US3730486A (en) * 1970-04-27 1973-05-01 Mitsubishi Heavy Ind Ltd Heat exchanging mixer-reactor for high viscosity substances
US4039024A (en) * 1972-11-21 1977-08-02 Heinz List Heat exchanger
JPS60178284A (ja) * 1984-02-23 1985-09-12 日本碍子株式会社 撹拌翼付乾燥機
EP0231584A1 (fr) * 1986-01-25 1987-08-12 Kubota Limited Dispositif de séchage du type à vis transporteuse

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JPS5811794A (ja) 1981-07-13 1983-01-22 Nisshin Steel Co Ltd 電気亜鉛めつき鋼板の製造法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624552A (en) * 1950-04-27 1953-01-06 E A Rose Inc Heat exchanger
FR1294663A (fr) * 1961-07-11 1962-05-26 George Fletcher & Co Ltd échangeurs de chaleur, et notamment cristallisoirs
US3500901A (en) * 1967-11-08 1970-03-17 Bethlehem Corp The Mixer
DE1923870A1 (de) * 1968-05-10 1970-02-12 Joy Mfg Co Materialbearbeitungsvorrichtung mit Schraubenfoerderer
US3613777A (en) * 1969-02-18 1971-10-19 Jiyuichi Nara Heat exchange apparatus for powdered materials
US3730486A (en) * 1970-04-27 1973-05-01 Mitsubishi Heavy Ind Ltd Heat exchanging mixer-reactor for high viscosity substances
US4039024A (en) * 1972-11-21 1977-08-02 Heinz List Heat exchanger
JPS60178284A (ja) * 1984-02-23 1985-09-12 日本碍子株式会社 撹拌翼付乾燥機
EP0231584A1 (fr) * 1986-01-25 1987-08-12 Kubota Limited Dispositif de séchage du type à vis transporteuse

Also Published As

Publication number Publication date
JP5425059B2 (ja) 2014-02-26
RU2010101929A (ru) 2011-07-27
JP2010530951A (ja) 2010-09-16
RU2473028C2 (ru) 2013-01-20
ATE533023T1 (de) 2011-11-15
NL1034022C2 (nl) 2008-12-23
ES2375301T3 (es) 2012-02-28
EP2015019B1 (fr) 2011-11-09
US8118479B2 (en) 2012-02-21
EP2015019A1 (fr) 2009-01-14
KR101450837B1 (ko) 2014-10-14
CN101765754A (zh) 2010-06-30
KR20100049554A (ko) 2010-05-12
US20090052274A1 (en) 2009-02-26

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